How uPVC Blocks Up to 40dB of Traffic Noise

A 40dB reduction is dramatic. On the decibel scale, every 10dB roughly halves perceived loudness, so cutting 40dB can turn a noisy main road into a whisper. Here is how our Lumia acoustic systems achieve it.

Multi-chambered profiles

Each profile contains several sealed air chambers. These cavities act as thermal and acoustic barriers, breaking up sound waves and slowing heat transfer before they reach your interior.

Dual elastomeric gaskets

Two lines of composite gasket run continuously around the sash. This dual-seal design eliminates the tiny air gaps that let noise leak through ordinary windows.

Multi-point hermetic locking

Robust locking pins pull the steel-reinforced sash evenly into the frame at multiple points. Even compression means no weak spots and a consistent, airtight, soundproof seal across the whole window.

• Sealed multi-chamber profiles diffuse sound and insulate heat.
• Dual composite gaskets close acoustic leak paths.
• Multi-point locking compresses the sash uniformly into the frame.
• Appropriate glazing further boosts the acoustic rating.

Soundproofing is the sum of small seals done right, all the way around the frame.

Want a quiet room?

If your home faces a main road, railway line or busy junction, our acoustic casement systems are worth a conversation. Reach out for a recommendation and quote.